With less than two months before Republican primary voters head to the ballot box, the Virginia Republican launched a television advertisement trying to position his Republican primary opponent as a liberal college professor.

That Cantor is engaging on this level with a primary opponent he is very likely to beat is rare. The campaign of his opponent, David Brat, reported it raised $89,610 and had $42,000 in its coffers at the end of March. Cantor’s main campaign account has $2 million.

But Cantor isn’t taking any chances.

The advertisement, which was first reported by Richmond’s NBC affiliate, tries to tie Brat to tax hikes proposed under then Democratic Gov. Tim Kaine. Brat served on a state board of economists at the time.

“Now, liberal David Brat is running for Congress as a Republican,” the ad says. “Liberal college professor? Tim Kaine adviser? Republican? Come on professor, you’ve got to be kidding.”

In addition, Cantor’s campaign launched a website to hammer home the point.

“Eric Cantor is out of control on this one,” Brat said in an email, forwarded by his campaign. “This is why I am running. DC has corrupted our language and our truth and our political system.”

It’s at least Cantor’s second advertisement of the cycle. Last week, he launched a campaign to position himself as the vanguard against President Barack Obama’s policies.

CORRECTION: This article was updated to correct the total in Brat’s campaign account.